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55412580 = 2235923543
BaseRepresentation
bin1101001101100…
…0011101100100
310212021020202210
43103120131210
5103141200310
65255403420
71241666466
oct323303544
9125236683
1055412580
1129308323
1216683570
13b631c12
147506136
154ce8820
hex34d8764

55412580 has 24 divisors (see below), whose sum is σ = 155155392. Its totient is φ = 14776672.

The previous prime is 55412563. The next prime is 55412603. The reversal of 55412580 is 8521455.

55412580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461712 + ... + 461831.

It is an arithmetic number, because the mean of its divisors is an integer number (6464808).

Almost surely, 255412580 is an apocalyptic number.

It is an amenable number.

55412580 is an abundant number, since it is smaller than the sum of its proper divisors (99742812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55412580 is a wasteful number, since it uses less digits than its factorization.

55412580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923555 (or 923553 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 55412580 is about 7443.9626543932. The cubic root of 55412580 is about 381.2438006696.

The spelling of 55412580 in words is "fifty-five million, four hundred twelve thousand, five hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 923543 1847086 2770629 3694172 4617715 5541258 9235430 11082516 13853145 18470860 27706290 55412580